Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88b1d2f0a7eb485…

MALICIOUS

PDF

43.5 KB Created: 2020-08-24 09:17:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3bbd4f787f0a55d55b8b7809ad61422 SHA-1: 59d363c7f65e294fd9479d989dc0f799479982b9 SHA-256: e88b1d2f0a7eb4855586c352dbf763c52add8799e8712cd6b7a71c15e39966d2
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external resources, suggesting a link farm or redirection strategy. One critical heuristic identified a malicious redirector link, and another noted a callback phishing lure, indicating an attempt to deceive the user. The document body, though heavily obfuscated, contains text related to 'attestation employeur pdf vierge' and includes the malicious URL, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=attestation+employeur+pdf+vierge In PDF document text
    • http://files.thekicsifolk.shop/uploads/1/3/2/3/132303081/latizizimoloxub-jojat-moniluxowoz.pdfIn PDF document text
    • http://files.colton-craig.com/uploads/1/3/1/3/131383737/kajawaduma.pdfIn PDF document text
    • http://gaxulil.jacksonvilleriverrally.org/uploads/1/3/0/9/130969406/991533be.pdfIn PDF document text
    • http://dasamuza.medicalsemiology.com/uploads/1/3/0/8/130873995/repisukivudujave.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3749/7243/files/android_one_lock_screen_wallpaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9420/3806/files/34470647552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5126/1853/files/17390878910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/42324249400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7272/3875/files/124631482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zetelonum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6464/6049/files/dijoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0660/5987/files/97956675565.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005baf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAF 5396 bytes
SHA-256: 4703cc40ac0bc70a32a5bbddd77d1b123c24e8e95198f4d2c5395e499be01fa9
font_01_sfnt_off00006df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF8 11120 bytes
SHA-256: d570aabdf24200c76d7aeefd21caf148b8e2ef2ef44eddbf2267f72d44c7c101
font_02_sfnt_off00009365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9365 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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